Wow you guys! I've never seen so many alerts and favourite author tags. Thank you, I'm very flattered. Well here it is. I did say I'd try to post before the weekend. This is my first attempt at smut ever. Normally I chicken out just before the bed scene or I leave it to my reader's imagination. This time I thought I'd let my imagination have a go. Enjoy!

"I love you!" His words echoed round the room as the magnitude of what he'd just said hit her.

She wore a deer in headlights expression, her mouth hung open slightly, her breathing becoming heavier.

Before he could think about the consequences, he pulled her towards him. His lips crash down on hers. She let out a sound that was somewhere between a squeak and a moan in shock. Castle could feel her trying to wrestle with her feelings as he sneaked a look at her still open eyes, so to prove his point he pressed harder. All of a sudden Kate seemed to have made her decision. Her eyes squeeze shut and she opened her mouth. Their tongues met in a fit of passion as Castle's fingers got tangled in her soft hair. Her hands find their way to his shoulders as she pulls him closer. They steal gulps of air in between frenzied kisses. At some point they'd started moving. They stop abruptly when Kate's back collides with the wall. She lets out a moan as she starts to feel Castle's hands travel down her sides to cup her toned backside; then he lifts her. She responds by wrapping her legs round his waist. Castle pushes her further into the wall to hold her in place. He can't get close enough. He wants to feel all of her now. Kate feels her desire pool in between her legs as she makes contact with Castle's tangible desire. Castle can feel the heat radiating off of her which only causes him to harden further. It's his turn to moan into her mouth as her hands start to wander

"Bedroom" she mumbles against his lips. Her voice shakes Castle from his desire-clouded reverie. He pulls back, "Are you sure?" His eyes are steel-like as they bore into hers. It would be agony, but if she changed her mind, he was prepared to walk away. Kate's expression softened as she leaned in to give him a quick kiss.

"I'm sure."

Needing no further encouragement, Rick fumbled with the buttons on her shirt. His hands shook slightly, as the magnitude of what they were doing hit him. He eventually got the last of the buttons undone and moved his hands up to her shoulders to help the shirt off. He pulled away to look at her, "Your beautiful"

Kate blushed under his scrutiny. Castle had a past, and although she didn't know, or even want to know how many women he'd been with, it was huge compliment coming from him. Rick pulled her head up and placed a delicate kiss on her lips so as to emphasise his point, but Kate wanted more. Now that they'd got this far she was sure that this was what she wanted. She increased the pressure and ran her tongue along his bottom lip, sucking slightly. He moaned as he ground into her abdomen. They lose their balance and end up tumbling onto Kate's bed. She wrestles him until she is on top, lazily undoing the button and zip on his jeans. Rick lifted his hips to help her get them off, and removed his shirt while he was at it. She took a moment to just drink him in. For a man of Rick's age, he was extremely well toned. She then got down to the obvious bulge in his pants. She smirked to herself but Rick saw it,

"Like what you see Detective?" he was wearing an identical expression, looking even more adorable with his hair sticking up in all directions.

She shrugged, "Maybe...Now don't go getting a big head!"

"Well if that's the aim of the game, we're going about this the wrong way"

Before she could stop it, a loud belly laugh escaped her mouth. Even at a momentous event like this, he was still cracking jokes. When Kate finally got herself under control, she looked into Rick's eyes and saw the familiar twinkle mixed in with desire there. She leaned in for an all-encompassing kiss, so much so that before she knew what had happened, Rick had her pinned underneath him again, kissing down her neck, sucking slightly on her pulse point. Her body was humming with pleasure. She was sure when he got to removing her underwear, they would be wet through. It made her blush slightly and Rick paused in his ministrations to check she wasn't having second thoughts. She smiled sweetly at him, trying to tell him with her eyes that she was alright, just unused to this sort of attention from him.

Rick pushed himself back up the bed before placing a delicate kiss on her swollen lips from their earlier make out session.

"You ok?"

"Yeah I'm just not used to this."

"Used to what? You're not trying to tell me you're a virgin are you?" There was mock surprise in his voice.

She giggled, "No! I'm just not used to being…loved.."

His eyes softened and it suddenly dawned on him that Kate Beckett had freely admitted to never loving someone with her whole heart. It made his chest swell with pride, but also saddened him that she'd never felt this way in relation to sex before. He would be the first person she would make love to.

He kissed her forehead, "Well get used to it, because if I have my way, you're never going to know anything else…well except for when we just need to have each other…which might be quite a lot at first…" he was rambling now, hoping that he wasn't talking himself out of a long term relationship with Kate. She was his one and done, and he wanted nothing more than to be hers. She was his other half in every way possible. She was the only woman he'd ever felt whole with, and wanted to spend the rest of his life proving it to her.

"Castle!"

"Hmm, what?"

"You're rambling." She smiled at him, afraid that her light scold had taken him off the boil.

"Oh sorry…" he looked at her sheepishly.

"Make love to me Rick." She looked him straight in the eye and saw his eyes cloud over with desire once more.

Needing no further encouragement Rick kissed her, their tongues dancing together lazily as one of his hands began to wonder. He ghosted his hand over one of her erect nipples and squeezed gently which made Kate moan and arch into his hand. He smiled, pleased that he was pleasing her. His hand moved lower, continuing his exploration of her body, while urging himself to remember every little detail. As he reached the hemline of her underwear, he could feel Kate getting restless underneath him. He slipped his hand under the silky material and ran his middle finger along her wet folds, down into her heat. God, she wanted him! He thought as another moan escaped Kate's lips. Rick broke the kiss and moved to her breast, moving aside the material so he could suck on her nipple. He started to move the finger that was inside her causing Kate to cry out.

"Oh Rick! Please…" she almost hissed, bucking her hips to meet his finger-thrusts. Sensing this wasn't enough, Rick inserted another finger, massaging the nub of nerves, getting faster with each thrust. Kate was lost in the sensation, detracted by the feelings that he was creating with just his fingers and mouth. He sucked harder on her nipple and gave it a little nip as he applied pressure to her clit with his thumb. It drove her over the edge,

"Caaaaassstllleee."

Her body sunk into the mattress as she came down from her orgasm. Wow, if that's what happens when he's touching me, what's going to happen when he's actually inside me?

"Did you enjoy that?" he asked while sucking her juices off his fingers looking semi-smug.

She couldn't form words and just had to nod. Rick smiled as he leaned down to kiss her. She could taste herself on his tongue which only made her want him more. Enough was enough, she wanted him in her now.

"I need you now!" she hissed in his ear before taking his earlobe between her teeth and nipping gently before releasing him to remove the last of their barriers.

Rick quickly positioned himself at her entrance. In one swift movement, Rick plunged himself deep within her causing them both to cry out throwing their heads back in ecstasy. As her walls quivered, adjusting to his size, Rick took the opportunity to rest his forehead against Kate's. Their breaths mingling as they panted; their first joining having taken both their breaths away. He brought his hand up to caress her cheek.

"I love you."

Kate smiled, "I love you too…so much." Rick smiled back before leaning in to kiss her quickly before he pulled out slowly and then plunged back in up to the hilt. They cried out again as the sensations overtook them. Hands were everywhere now as Rick started to speed up. Kate dug her finger nails into his back, clawing him to her as if she wanted to be absorbed into him. They moved as one, perfectly synchronised, just as they did in their professional lives. Kate could feel herself getting close and urged Rick to pick up the pace even further,

"Yes! Faster Rick, please…I'm so close."

With a primal growl, Rick pounded into her, and latched on to the other nipple that had been ignored in his earlier ministrations. That did it. Kate Beckett was undone. He felt her walls tighten around him, causing him to go over the edge with her.

"Kate!"

"Rick!" they said simultaneously before collapsing. They lay there catching their breath for a few minutes before Rick lifted himself off of her and gathered her in his arms. He took her face in his hands before bringing her in for another mind-blowing kiss. I could get used to this she thought to herself as she struggled to get her breathing under control. She shot a goofy grin at him before snuggling closer into his arms.

There was still so much to talk about, but for now they were content in their little bubble, just two people, in love. Nothing could spoil this moment.

Well there you go people. I'm still blushing. I can't believe I just wrote that. Please tell me what you think, was it lame, was it good, should I never write smut again? You tell me, just no flames please if you can avoid it. I was thinking of leaving it here, but if I get enough reviews I might continue the story. Tell me what you think!